{"id":13217,"date":"2019-04-01T08:08:07","date_gmt":"2019-04-01T08:08:07","guid":{"rendered":"http:\/\/www.appservgrid.com\/paw92\/?p=13217"},"modified":"2019-04-01T08:08:07","modified_gmt":"2019-04-01T08:08:07","slug":"8-linux-parted-commands-to-create-resize-and-rescue-disk-partitions","status":"publish","type":"post","link":"https:\/\/www.appservgrid.com\/paw92\/index.php\/2019\/04\/01\/8-linux-parted-commands-to-create-resize-and-rescue-disk-partitions\/","title":{"rendered":"8 Linux \u2018Parted\u2019 Commands to Create, Resize and Rescue Disk Partitions"},"content":{"rendered":"

Parted<\/strong>\u00a0is a famous command line tool that allows you to easily manage hard disk partitions. It can help you add, delete, shrink and extend disk partitions along with the file systems located on them. Parted has gone a long way from when it first came out. Some of it\u2019s functions have been removed, others have been added.<\/p>\n

\n

\"Parted<\/a><\/p>\n

Parted Command to Manage Linux Disk Partitions<\/p>\n<\/div>\n

In this tutorial\u00a0you will learn\u00a0the basics of parted and we will show you some practical examples. If\u00a0you don\u2019t have any previous experience with parted, please be aware that parted writes the changes immediately to your disk, so be careful if you try to modify your disk partitions.<\/p>\n

If you plan on testing parted, the better option would be to simply use a virtual machine or old computer\/laptop without any valuable information on it. To make modifications on a disk partition it must not be in use. If you need to work on primary partition, you may boot into rescue mode.<\/p>\n

Note<\/strong>: You will need to have root access to the machine you will be working on in order to use parted.<\/p>\n

How to Install Parted on Linux<\/h3>\n

On many Linux distributions,\u00a0parted<\/strong>\u00a0comes pre-installed. If it is not included in your distro, you can install it with:<\/p>\n

$ sudo apt-get install parted           [On Debian\/Ubuntu<\/strong> systems]\r\n# yum install parted                    [On RHEL\/CentOS<\/strong> and Fedora<\/strong>]\r\n# dnf install parted                    [On Fedora 22+<\/strong> versions]\r\n<\/pre>\n
Once you have make sure that\u00a0parted<\/strong>\u00a0is installed, you can proceed further to check out some real world examples of parted command in the rest of this article.<\/p>\n
1. Check Parted Version<\/h4>\n
Run the following command, you see message similar to the one shown on the image below. Don\u2019t worry if your parted version is different. Unless specified otherwise, parted will use your primary drive, which in most cases will be\u00a0\/dev\/sda<\/code>.<\/p>\n
$ parted\r\n<\/pre>\n
\n
\"Check<\/a><\/p>\n
Check Parted Command Version<\/p>\n<\/div>\n
If you want to exit parted, simply type:<\/p>\n
$ quit\r\n<\/pre>\n
2. List\u00a0Linux Disk Partitions<\/h4>\n
Now that parted is started, let\u2019s list the partitions of the selected hard disk. As mentioned earlier, parted chooses your\u00a0first drive by default.\u00a0To see the disk partitions\u00a0run\u00a0print<\/code>.<\/p>\n
(parted) print\r\n<\/pre>\n
\n
\"Check<\/a><\/p>\n
Check Linux Partitions<\/p>\n<\/div>\n
When running\u00a0print<\/code>, it will also display the hard disk information and model. Here is example from a real hard disk (not virtual as shown on the image above) :<\/p>\n
(parted) print<\/strong>\r\n\r\nModel: ATA TOSHIBA MQ01ACF0 (scsi)\r\nDisk \/dev\/sda: 320GB\r\nSector size (logical\/physical): 512B\/4096B\r\nPartition Table: msdos\r\n\r\nNumber \u00a0Start \u00a0 End \u00a0 \u00a0Size \u00a0 Type \u00a0 \u00a0 \u00a0File system \u00a0Flags\r\n\r\n\u00a01 \u00a0 \u00a0 \u00a01049kB \u00a0256MB \u00a0255MB \u00a0primary \u00a0 ext2 \u00a0 \u00a0 \u00a0 \u00a0 boot\r\n\u00a02 \u00a0 \u00a0 \u00a0257MB \u00a0 320GB \u00a0320GB \u00a0extended\r\n\u00a05 \u00a0 \u00a0 \u00a0257MB \u00a0 320GB \u00a0320GB \u00a0logical \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0lvm\r\n<\/pre>\n
In the example above, you can see the disk model, capacity sector size and partition table.<\/p>\n
3. List or Switch to Different Disk<\/h4>\n
If you have more than one hard disk, you can easily switch\u00a0between disks, by using the \u201cselect<\/code>\u201d command. In the example below, I will switch from\u00a0\/dev\/sda<\/code>\u00a0to\u00a0\/dev\/sdb<\/code>\u00a0which is a secondary drive on my system.<\/p>\n
To easily switch between disks you can use:<\/p>\n
(parted) select \/dev\/sdX\r\n<\/pre>\n
\n
\"Select<\/a><\/p>\n
Select Different Disk<\/p>\n<\/div>\n
Change\u00a0\"X\"<\/code>\u00a0with the letter of the disk to which you wish to switch.<\/p>\n
4. Create Primary or Logical Partition in Linux<\/h4>\n
Parted can be used to create primary and logical disk partitions. In this example, I will show you how to create primary partition, but the steps are the same for logical partitions.<\/p>\n
To create new partition, parted uses \u201cmkpart<\/code>\u201c. You can give it additional parameters like\u00a0\"primary\"<\/code>\u00a0or\u00a0\"logical\"<\/code>\u00a0depending on the partition type that you wish to create.<\/p>\n
Before you start creating partitions, it\u2019s important to make sure that you are using (you have selected) the right disk.<\/p>\n
Start by using print:<\/p>\n
(parted) print\r\n<\/pre>\n
\n
\"Show<\/a><\/p>\n
Show Current Linux Disk<\/p>\n<\/div>\n
As shown on the above image, we are using a virtual drive of\u00a034 GB<\/strong>. First we will give the new disk a label and then create a partition and set a file system on it.<\/p>\n
Now the first step is to give the new\u00a0disk a label name<\/a>\u00a0with:<\/p>\n
(parted) mklabel msdos\r\n<\/pre>\n
Now create the new partition with \u00a0mkpart<\/code>. The listed units are in megabytes (MB)<\/strong>. We will create a\u00a010 GB<\/strong>partition starting from\u00a01<\/strong>\u00a0to\u00a010000<\/strong>:<\/p>\n
(parted) mkpart\r\n \r\nPartition type?\u00a0 primary\/extended? primary\r\nFile system type?\u00a0 [ext2]?\r\nStart? 1\r\nEnd? 10000\r\n(parted) print\r\nModel: ATA VBOX HARDDISK (scsi)\r\nDisk \/dev\/sdb: 34.4GB\r\nSector size (logical\/physical): 512B\/512B\r\nPartition Table: msdos\r\nDisk Flags: \r\nNumber\u00a0 Start \u00a0 End \u00a0 \u00a0 Size\u00a0 \u00a0 Type \u00a0 \u00a0 File system\u00a0 Flags\r\n 1\u00a0 \u00a0 \u00a0 1049kB\u00a0 10.0GB\u00a0 9999MB\u00a0 primary\u00a0 ext2 \u00a0 \u00a0 \u00a0 \u00a0 lba\r\n<\/pre>\n
\n
\"Create<\/a><\/p>\n
Create Primary or Logical Linux Partitions<\/p>\n<\/div>\n
Next, \u00a0exit parted with\u00a0\"quit\"<\/code>\u00a0command. We will\u00a0format our new partition in ext4 file system using\u00a0mkfs<\/code>. To make this happen run the following command:<\/p>\n
# mkfs.ext4 \/dev\/sdb1\r\n<\/pre>\n
Note<\/strong>: It\u2019s important to select the right disk and partition when executing the above command!<\/p>\n
Now let\u2019s verify our results, by printing the partition table on our secondary disk. Under file system column, you should see ext4 or the file system type that you have decided to use for your partition:<\/p>\n
\n
\"Verify<\/a><\/p>\n
Verify Disk Partition Filesystem<\/p>\n<\/div>\n
5. Resize Linux Disk\u00a0Partition<\/h4>\n
Parted includes multiple useful functions and one of them is\u00a0\"resizepart\"<\/code>.\u00a0As you have probably figured this out by now,\u00a0\"resizepart\"<\/code>\u00a0helps you resize a partition.<\/p>\n
In the example below,\u00a0you will see how to resize an existing partition. For the purpose of this example, we will be using the earlier created partition.<\/p>\n
First you will need to know the number of the partition that you will be resizing. This can be easily found by using\u00a0\"print\"<\/code>:<\/p>\n
(parted) print\r\n<\/pre>\n
\n
\"Find<\/a><\/p>\n
Find Linux Partition Number<\/p>\n<\/div>\n
In our example, the partition number is\u00a0\"1\"<\/code>. Now run the resizepart command:<\/p>\n
(parted) resizepart\r\n<\/pre>\n
You will be asked for the number of\u00a0the partition that you will resize. Enter it\u2019s number. After that, you will be asked to set the new ending point\u00a0for this partition. Remember that by default the units are in\u00a0MB<\/strong>. In our example, we have set the new partition size to\u00a015 GB<\/strong>:<\/p>\n
(parted) resizepart \r\nPartition number? 1\r\nEnd?\u00a0 [10.0GB]? 15000\r\n<\/pre>\n
Now verify the results with\u00a0\"print\"<\/code>:<\/p>\n
(parted) print\r\n<\/pre>\n
\n
\"Verify<\/a><\/p>\n
Verify Linux Resize Partition<\/p>\n<\/div>\n
6. Delete\u00a0Linux Partition<\/h4>\n
The next thing you will learn is how to delete a partition from your hard drive. To do this, you will need to use the\u00a0\"rm\"<\/code>\u00a0command within parted. To delete a disk partition you will need to know it\u2019s number.<\/p>\n
As mentioned earlier, you can easily obtain this number by using\u00a0\"print\"<\/code>. In our example, we will delete the partition\u00a0with number\u00a01<\/code>\u00a0from our secondary drive\u00a0\/dev\/sdb1<\/code>:<\/p>\n
(parted) rm 1\r\n<\/pre>\n
Verify the results by printing the partitions table:<\/p>\n
\n
\"Delete<\/a><\/p>\n
Delete a Linux Partition<\/p>\n<\/div>\n
7. Rescue Linux Disk Partition<\/h4>\n
Parted supports a \u201crescue\"<\/code>\u00a0utility that helps you recover a lost partition between a starting and ending point. If a partition is found within that range, it will attempt to restore it.<\/p>\n
Here is an example:<\/p>\n
(parted) rescue<\/strong>\r\nStart? 1<\/strong>\r\nEnd? 15000<\/strong>\r\n(parted) print\r\nModel: Unknown (unknown)\r\nDisk \/dev\/sdb1: 15.0GB\r\nSector size (logical\/physical): 512B\/512B\r\nPartition Table: loop\r\nDisk Flags:\r\n\r\nNumber Start End Size File system Flags\r\n1 0.00B 15.0GB 15.0GB ext4\r\n<\/pre>\n
8\u00a0Change Linux Partition Flag<\/h4>\n
Using parted, you can change the state of a\u00a0flag for disk partitions. The supported flags are:<\/p>\n
    \n
  1. boot<\/li>\n
  2. root<\/li>\n
  3. swap<\/li>\n
  4. hidden<\/li>\n
  5. raid<\/li>\n
  6. lvm<\/li>\n
  7. lba<\/li>\n
  8. legacy_boot<\/li>\n
  9. irst<\/li>\n
  10. esp<\/li>\n
  11. palo<\/li>\n<\/ol>\n
    The states can be either\u00a0\"on\"<\/code>\u00a0or\u00a0\"off\"<\/code>. To change a flag simply run\u00a0\"set\"<\/code>\u00a0command within parted:<\/p>\n
    (parted) set 2 lba on\r\n<\/pre>\n
    The above command sets\u00a0lba<\/code>\u00a0flag to on for second partition. Verify the results with\u00a0print<\/code>:<\/p>\n
    \n
    \"Change<\/a><\/p>\n
    Change Partition Flag<\/p>\n<\/div>\n
    Conclusion<\/h3>\n
    Parted<\/strong>\u00a0is a useful and powerful utility that can help you manage your disk partitions in Linux systems. As always, when working with disk partitions you need to be extra careful. It is strongly recommend to go through parted man pages to learn how you can customize it\u2019s output and find more information about its capabilities.<\/p>\n
    If you have any questions or comments, please do not hesitate to use the comment section below.<\/p>\n
    Source<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
    Parted\u00a0is a famous command line tool that allows you to easily manage hard disk partitions. It can help you add, delete, shrink and extend disk partitions along with the file systems located on them. Parted has gone a long way from when it first came out. Some of it\u2019s functions have been removed, others have … <\/p>\n
    Continue reading “8 Linux \u2018Parted\u2019 Commands to Create, Resize and Rescue Disk Partitions”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-13217","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/posts\/13217","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/comments?post=13217"}],"version-history":[{"count":1,"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/posts\/13217\/revisions"}],"predecessor-version":[{"id":13218,"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/posts\/13217\/revisions\/13218"}],"wp:attachment":[{"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/media?parent=13217"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/categories?post=13217"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appservgrid.com\/paw92\/index.php\/wp-json\/wp\/v2\/tags?post=13217"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}